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Maintenance
When carrying out any work, carefully observe the information provided in Chapter "Safety
instructions (Page 13)".
9.1
Safety instructions for maintenance
Danger due to improper maintenance and repairs
Improper repairs can result in death and serious physical injury.
● Only qualified maintenance and installation personnel may perform repairs.
Danger due to defective seals
When working on the device, seals at the doors, roof panels as well as front, rear and side
panels can be damaged. Operation with defective seals can result in death, serious injury or
material damage.
● Replace the defective seals before commissioning.
● Observe the environmental conditions stated in the technical data.
Electric shock caused by externally connected high voltages
Magnetizing and demagnetizing equipment that is fed from an external voltage source can
result in high voltages. This voltage can result in death or serious injury.
● Carefully comply with the 5 safety rules.
● Ensure that no voltage from external feeds exists before commencing maintenance and
Danger to life as a result of a hazardous voltage at the anti-condensation heating
The anti-condensation heating system is used when the device is switched off during non-
operational periods or when maintenance work is being carried out. For this reason, the heating
is supplied with voltage from a separate line supply. When the power supply voltage for the anti-
condensation heating is connected – also for an EMERGENCY OFF or when the main switch
is open – a hazardous voltage is still present. This voltage can cause serious injury.
● Carefully comply with the 5 safety rules.
SINAMICS PERFECT HARMONY GH150 6SL3826
Operating Instructions 05/2020
repair work.
9
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